题目解析:
用年份1905定位到该段第2,3句:According to the government’s first census of the rural population, taken in 1905, there were about thirty thousand villages in Siam. This was probably a large increase over the figure even two or three decades earlier, during the late 1800s.从这两句话可以得知,1905年有3万个村庄,比起1800s晚期有很大的增长。这和D选项呼应。AB选项在原文无提及,而C选项描述的不是1905的特点。